Optimization of gas metal arc welding (Gmaw) parameters for minimum distortion of t welded joints of a36 mild steel by taguchi method

Ario Sunar Baskoro, Rafdi Hidayat, Agus Widyianto, Mohammad Azwar Amat, Danurengga Ubaszti Putra

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In this study, the GMAW parameters for welding of A36 mild steel have been investigated to get the minimum of distortion. The type of welded joint used was square groove T-joint fillet weld with filler wire ER70S-6. The welding current and the welding speed were selected as input parameters while the response used was distortion (longitudinal bending distortion and angular distortion). Taguchi method was used to determine optimal welding parameters which the minimum distortion. Design of experiment was set two factors with three level in each factor and three replication, so the L9 Taguchi’s orthogonal array was applied. The minimum conditions were determined using S/N ratio with a quality character of smaller is better (SB). In addition, to determine the significance of the welding parameters used ANOVA. The results show that the welding current of 170 A and the welding speed of 4.0 mm/s were obtained as the minimum of longitudinal bending distortion and angular distortion. Based on analysis of variance, the welding current was a parameter that greatly affects the longitudinal bending distortion with the percentage contribution of 64.36% while angular distortion was strongly influenced by welding speed parameter with the percentage contribution of 53.38%.

Original languageEnglish
Title of host publicationAdvanced Materials Research QiR 16
EditorsAnne Zulfia, Wahyuaji Narottama Putra
PublisherTrans Tech Publications Ltd
Pages356-363
Number of pages8
ISBN (Print)9783035715996
DOIs
Publication statusPublished - 2020
Event16th International Conference on Quality in Research, QiR 2019 - Padang, Indonesia
Duration: 22 Jul 201924 Jul 2019

Publication series

NameMaterials Science Forum
Volume1000 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference16th International Conference on Quality in Research, QiR 2019
Country/TerritoryIndonesia
CityPadang
Period22/07/1924/07/19

Keywords

  • Distortion
  • GMAW
  • T-joint
  • Taguchi method

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